import java.util.Scanner;

/*class Student {
    public int age;
    public String name;
    public void study(String name) {
        this.name = name;
    }
    public void printName() {
        System.out.println(name);
    }
}*/
/*class PetDog {
    int num ;
    int age ;
    public void Study(int num) {
        this.num = num;
    }
*//*    public PetDog() {
        this(15);
    }
    public PetDog(int num) {
        this();
        this.num = num;
    }*//*
  *//*  public PetDog(int num, int age) {
        this.num = num;
        this.age = age;
    }*//*

}
public class JavaSE729 {
    public static void main(String[] args) {
        PetDog petDog = new PetDog();
        petDog.Study(10);
    }*/
    /*public static void main(String[] args) {
        Student student = new Student();
        Student student1 = new Student();
        student.study("hh");
        student.printName();
    }*/
//}

/*    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNextInt()) {
            int x = scanner.nextInt();
            int y = scanner.nextInt();
            Data data = new Data(x, y);
            System.out.println(data.getX() + data.getY());
        }
    }

}*/
/*

class Data {

    private int x;
    private int y;

    public Data(int x, int y) {
        this.x = x;
        this.y = y;
    }

    public int getX() {
        return x;
    }

    public int getY() {
        return y;
    }
*/
/*class Student {
    private int num;
    private String name;
    private static int age;
    static {
        age = 18;
    }
    {
        this.name = "加油";
        this.num = 100;
    }
}*/
public class JavaSE729 {
/*    public static void main(String[] args) {
        {
            int a = 1;
        }
        int b = 2;
    }*/
}